Okay I am in the process of doing the top end on my bike. After taking off the cylinder I noticed that the piston is scored all to hell. I inspected the cylinder and there where very very tiny groves in it. I'm going to take it up to the shop tomarrow and see what they say about. But to my question. What am I looking for when inspecing a lower bearing. I have some side to side movement. And as far as up and down movement I have some but it's so small that it's hard to notice. But if I hold the rod a certain way there is no movement. So what exactly is it that I'm looking for when examining the lower bearings. Also does anyone know how much it would cost (roughly) to put a new bearing in the bottom end if I took the motor out of the bike and took it up to the shop. Thanks in advance.